基于液体的电控光学成像系统(英文)

提出一种基于液体的电控光学成像器件,其结构是一个容纳有三层液体的圆柱容器,上下两层是导电液体,中间一层是油性液体.圆柱容器的内壁依次涂覆了透明导电层和绝缘介质层.在透明导电层与上下导电液体间施加两个不同的外部电压,分别用来控制容器中两个液体界面的形状.两个外加电压的适当匹配使该光学成像器件在焦距变化的同时保证像面位置不动.文章以器件对无穷远处成像为例,基于高斯光学理论对器件做了详细的计算,给出了两个外加电压的匹配关系以及系统的焦距表达式,并对系统做了相关的模拟分析,分析的结果表明本文所设计的光学成像器件的变倍比可达1∶1.5,体现该器件是一种可靠的变焦光学成像器件.

Electrically-controlled and Liquid-based Optical Imaging Apparatus

A kind of liquid-based and electrically-controlled optical imaging apparatus is provided, which is a cylindrical chamber holding three liquid layers. A kind of insulating liquid is sandwiched between two layers of conducting liquids. A layer of transparent electrode and a layer of insulating layer are coated inside the chamber in turn. Two different external voltages can be applied between the electrode and two layers of conducting liquids, which respectively control two liquid interfaces in the chamber. These two voltages can be matched appropriately to change the focal length and keep the image plane of the apparatus stable simultaneously. Taking the infinite object as an example and based on the Gauss Optics Theory, detailed calculations concerning the relationship between the voltages and the focal length of the apparatus are given. The relevant simulation result that the zoom ratio of the apparatus can be 1:1.5 shows that such an apparatus is a viable variable focal length optical imaging system.